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  3. Why did the 1906 San Francisco earthquake help give birth to modern earthquake science? Why did scientists wire up fault zones

Why did the 1906 San Francisco earthquake help give birth to modern earthquake science? Why did scientists wire up fault zones

admin2009-06-24  73
问题 Why did the 1906 San Francisco earthquake help give birth to modern earthquake science?
Why did scientists wire up fault zones with so many sensors?
选项 A、To stop faults dumping stress on other faults.
B、To detect an earthquake.
C、To warn people just before a quake.
D、To send out electronic signals early to prepare people.
答案D
解析 运用推理判断法，可知用很多传感器将断层带连接起来，能够在地震发生时，通过电子信号的传递，通知人们及早地做准备，因为电子信号的速度比人们感知到的地震的速度要快得多。
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